/* Valcour Systems — site styles
   Palette follows the run itself: deep water, shallows, foam, sand. */
@font-face {
  font-family: "Archivo";
  src: url("../fonts/archivo-latin-wdth-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
}

:root {
  --deep: #06283d;
  --deeper: #041c2c;
  --water: #0f5468;
  --foam: #f1f5f3;
  --sand: #dccba6;
  --ink: #0b1a22;
  --signal: #ff6b2c;
  --muted: #4c5d66;
  --line: rgba(11, 26, 34, 0.16);
  --line-light: rgba(241, 245, 243, 0.2);
  --gutter: clamp(20px, 5vw, 64px);
  --max: 1240px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--foam);
  color: var(--ink);
  font-family: "Archivo", "Helvetica Neue", Arial, sans-serif;
  font-stretch: 100%;
  font-size: 1.0625rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
p { margin: 0 0 1em; max-width: 62ch; }
p:last-child { margin-bottom: 0; }
h1, h2, h3 { margin: 0; font-stretch: 125%; font-weight: 700; line-height: 1.04; letter-spacing: -0.02em; text-wrap: balance; }
h1 { font-size: clamp(2.5rem, 6.4vw, 5.75rem); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.8rem, 3.6vw, 3.1rem); }
h3 { font-size: 1.2rem; line-height: 1.2; letter-spacing: -0.01em; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--signal); color: var(--ink); padding: 10px 16px; z-index: 20; }
.skip:focus { left: 0; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.band { padding-top: clamp(64px, 9vw, 128px); padding-bottom: clamp(64px, 9vw, 128px); }
.band-deep { background: var(--deep); color: var(--foam); }
.band-sand { background: var(--sand); }
.lede { font-size: clamp(1.15rem, 1.6vw, 1.4rem); line-height: 1.45; max-width: 54ch; }
.band-deep .lede, .hero .lede { color: #c9d9dc; }

/* Header */
.site-head { background: var(--deep); color: var(--foam); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 22px; padding-bottom: 22px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-stretch: 125%; font-weight: 800; font-size: 1.15rem; letter-spacing: 0.14em; }
.brand svg { width: 30px; height: 30px; }
.nav { display: flex; align-items: center; gap: clamp(14px, 3vw, 36px); font-weight: 500; }
.nav a { text-decoration: none; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { border-bottom-color: var(--signal); }
.nav a.btn { border-bottom: 2px solid var(--signal); padding: 10px 18px; white-space: nowrap; }
.nav a.btn[aria-current] { background: transparent; color: var(--foam); }
@media (max-width: 560px) { .nav .nav-wide { display: none; } }

/* Buttons */
.btn { display: inline-block; font: inherit; font-weight: 650; text-decoration: none; padding: 14px 24px; border: 2px solid var(--signal); background: var(--signal); color: var(--ink); cursor: pointer; border-radius: 2px; transition: background-color 0.15s, color 0.15s; }
.btn:hover { background: #ff8750; border-color: #ff8750; }
.btn-ghost { background: transparent; color: inherit; border-color: currentColor; }
.btn-ghost:hover { background: var(--foam); color: var(--ink); border-color: var(--foam); }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }

/* Hero */
.hero { background: var(--deep); color: var(--foam); padding-top: clamp(48px, 8vw, 110px); overflow: hidden; }
.hero h1 { max-width: 13ch; }
.hero .lede { margin-top: 28px; }
.profile { margin-top: clamp(40px, 6vw, 72px); }
.profile svg { flex: 0 0 auto; width: max(100%, 900px); height: auto; margin-left: auto; }
.profile-wrap { display: flex; justify-content: flex-end; }
.route { fill: none; stroke: var(--signal); stroke-width: 2.5; stroke-linecap: round; stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 3.2s 0.4s cubic-bezier(0.5, 0, 0.3, 1) forwards; }
.craft { opacity: 0; animation: arrive 0.5s 3.3s ease-out forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes arrive { to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .route { animation: none; stroke-dashoffset: 0; }
  .craft { animation: none; opacity: 1; }
  html { scroll-behavior: auto; }
}

/* The run: a real sequence, so it is numbered */
.run { background: var(--sand); padding-top: clamp(40px, 5vw, 64px); }
.run-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 12px 40px; margin-bottom: 40px; }
.run-head p { color: #3c3a2e; max-width: 44ch; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; border-top: 2px solid var(--ink); }
.steps li { counter-increment: step; padding: 22px 24px 0 0; }
.steps li + li { padding-left: 24px; border-left: 1px solid rgba(11, 26, 34, 0.25); }
.steps li::before { content: counter(step); display: block; font-stretch: 125%; font-weight: 800; font-size: 2.6rem; line-height: 1; margin-bottom: 18px; font-variant-numeric: tabular-nums; }
.steps h3 { margin-bottom: 10px; }
.steps p { font-size: 1rem; color: #2c2f2a; }
@media (max-width: 900px) {
  .steps { grid-template-columns: 1fr 1fr; row-gap: 36px; }
  .steps li:nth-child(3) { padding-left: 0; border-left: 0; }
}
@media (max-width: 560px) {
  .steps { grid-template-columns: 1fr; }
  .steps li + li { padding-left: 0; border-left: 0; }
}

/* Split layout: heading left, body right */
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.split-body > * + * { margin-top: 1.1em; }

.pair { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 72px); margin-top: clamp(48px, 6vw, 80px); padding-top: 32px; border-top: 2px solid var(--ink); }
.pair h3 { font-size: 1.5rem; margin-bottom: 12px; }
@media (max-width: 720px) { .pair { grid-template-columns: 1fr; } }

/* Open problems list */
.problems { margin: clamp(40px, 5vw, 64px) 0 0; display: grid; grid-template-columns: 1fr 1fr; column-gap: clamp(32px, 6vw, 96px); }
.problems div { padding: 22px 0; border-top: 1px solid var(--line-light); }
.problems dt { font-stretch: 125%; font-weight: 700; font-size: 1.15rem; margin-bottom: 6px; }
.problems dd { margin: 0; color: #c9d9dc; max-width: 46ch; }
@media (max-width: 720px) { .problems { grid-template-columns: 1fr; } }

/* Missions */
.missions { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 4vw, 56px); margin-top: clamp(40px, 5vw, 64px); }
.missions section { border-top: 2px solid var(--ink); padding-top: 20px; }
.missions h3 { font-size: 1.35rem; margin-bottom: 14px; }
.missions ul { margin: 0; padding: 0; list-style: none; }
.missions li { padding: 12px 0; border-top: 1px solid var(--line); }
@media (max-width: 860px) { .missions { grid-template-columns: 1fr; } }

/* Closing call */
.close h2 { max-width: 18ch; }

/* Page head for inner pages */
.page-head { background: var(--deep); color: var(--foam); padding-top: clamp(40px, 7vw, 96px); padding-bottom: clamp(56px, 8vw, 112px); }
.page-head h1 { font-size: clamp(2.3rem, 5.4vw, 4.6rem); max-width: 16ch; }
.page-head .lede { margin-top: 24px; }

/* Team */
.team { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px); margin-top: clamp(40px, 5vw, 64px); }
.person { margin: 0; }
.portrait { position: relative; aspect-ratio: 4 / 5; background: var(--water); overflow: hidden; }
.portrait span { position: absolute; inset: 0; display: grid; place-items: center; color: var(--foam); font-stretch: 125%; font-weight: 800; font-size: clamp(4rem, 10vw, 8rem); letter-spacing: -0.03em; opacity: 0.85; }
.portrait img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.person h3 { font-size: 1.6rem; margin-top: 22px; }
.person .role { font-weight: 600; color: var(--muted); margin: 4px 0 14px; }
@media (max-width: 640px) { .team { grid-template-columns: 1fr; } }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 4vw, 56px); margin-top: clamp(36px, 5vw, 56px); }
.principles div { border-top: 2px solid var(--ink); padding-top: 20px; }
.principles h3 { margin-bottom: 10px; }
@media (max-width: 860px) { .principles { grid-template-columns: 1fr; } }

/* Contact form */
.contact-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-aside h2 { font-size: 1.5rem; margin-bottom: 12px; }
.contact-aside section + section { margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--line); }
form { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 24px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field-full { grid-column: 1 / -1; }
@media (max-width: 560px) { form { grid-template-columns: 1fr; } }
label { font-weight: 600; font-size: 0.98rem; }
label small { font-weight: 400; color: var(--muted); font-size: 0.9rem; }
input, select, textarea { font: inherit; color: var(--ink); background: #fff; border: 1px solid #8b989e; border-radius: 2px; padding: 13px 14px; width: 100%; }
textarea { min-height: 170px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--signal); outline-offset: 1px; border-color: var(--ink); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-note { font-size: 0.92rem; color: var(--muted); max-width: none; }
.form-status { grid-column: 1 / -1; padding: 14px 16px; border-left: 4px solid var(--ink); background: #fff; }
.form-status[hidden] { display: none; }
.form-status.is-error { border-left-color: #b3261e; }
.form-status.is-ok { border-left-color: #1c7c54; }

/* Plain text pages */
.prose h2 { font-size: 1.5rem; margin: 2em 0 0.6em; }
.prose ul { padding-left: 1.2em; max-width: 62ch; }

/* Footer */
.site-foot { background: var(--deeper); color: #b7c7cb; padding: 56px 0 40px; font-size: 0.98rem; }
.site-foot .wrap { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.site-foot .brand { color: var(--foam); }
.site-foot p { margin-top: 14px; max-width: 34ch; }
.site-foot h2 { font-size: 0.98rem; font-stretch: 100%; letter-spacing: 0; color: var(--foam); margin-bottom: 12px; }
.site-foot ul { list-style: none; margin: 0; padding: 0; }
.site-foot li + li { margin-top: 8px; }
.site-foot a { text-decoration: none; }
.site-foot a:hover { color: var(--foam); text-decoration: underline; }
.legal { grid-column: 1 / -1; border-top: 1px solid var(--line-light); padding-top: 22px; margin-top: 16px; font-size: 0.9rem; }
@media (max-width: 640px) { .site-foot .wrap { grid-template-columns: 1fr 1fr; } .site-foot .wrap > :first-child { grid-column: 1 / -1; } }